Since corals and other sessile invertebrates are more or less stuck in place and can’t chase away competitors or run from predators, many of them—particularly among the soft corals—have evolved the tactic of exuding toxins into the water to prevent other inverts from encroaching and to discourage predation. As you can imagine, this “chemical warfare,” … [Read More]

At a casual glance, corals would appear to be an inoffensive lot, generally espousing a “live-and-let-live” philosophy. After all, when you’re firmly affixed to the substrate, how much trouble can you really cause for your neighbors? Plenty, as it turns out! Corals and other sessile invertebrates may seem harmless, but they actually take aggression to … [Read More]

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